CN208125129U - A kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device - Google Patents
A kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device Download PDFInfo
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- CN208125129U CN208125129U CN201820460324.7U CN201820460324U CN208125129U CN 208125129 U CN208125129 U CN 208125129U CN 201820460324 U CN201820460324 U CN 201820460324U CN 208125129 U CN208125129 U CN 208125129U
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 11
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- 238000004364 calculation method Methods 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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Abstract
The utility model discloses a kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring devices, including wobbler shaft, plunger pump case, plunger pump seal cover board, magnetic patch mounting base, non-contact angle sensor, magnetic patch and plunger pump side end cap；Utility model device is small to axial plunger pump structural modification, it only needs to process axial plunger pump wobbler shaft and seal cover board, difficulty of processing is small, processing cost is low, and non-contact angle sensor is made of magnetic patch and sensor body two parts, utmostly facilitates installation and maintenance；Using non-contact angle sensor, magnetic patch is fully sealed, and magnetic patch and sensor body are kept apart by plunger pump seal cover board, reduces the generation in oil liquid leakage source；Sensor body is mounted on seal cover board outer surface, without arranging that lead, mounting means are simple in axial plunger pump case；By perceiving the variation of magnetic direction, to measure the angle and vibration characteristics of axial plunger pump swash plate, no mechanical wear.
Description
Technical field
The utility model belongs to technical field of hydraulic elements, is suitable for high-voltage high-speed axial plunger pump more particularly to one kind
Swashplate angle and vibration characteristics measuring device.
Background technique
Axial plunger pump is one of dynamical element mostly important in Hydraulic Field, its working principle is that by plunger in cylinder
It is moved back and forth in body, the volume of seal operation cavity changes to realize oil suction and pressure oil.Axial plunger pump has power
The advantages that density height, axially mounted compact-sized, high-efficient, adjusting flow facilitate, thus it is widely used in engineering machinery, ship
The high-voltage high-speeds such as oceangoing ship and aviation, big flow and flow need the occasion adjusted.
The output flow regulative mode of axial plunger pump is the size and Orientation for changing swashplate angle by stroking mechanism,
To control the size of piston reciprocation stroke.The dynamic equilibrium of the hydraulic coupling generated using preset spring force and output oil pressure is real
One of the mode of existing swashplate angle automatic adjustment.However, the swash plate not only active force by variable spring and variable mandril, also by
To the opplied moment of plunger, and torque size changes with axial plunger pump condition, makes to the variable characteristics of axial plunger pump
At influence.Therefore, carrying out real―time precision measurment to swashplate angle will be helpful to the true change of research high-voltage high-speed axial plunger pump
Flow characteristic.
Simultaneously as there are cyclically-varyings for plunger cavity pressure, so that acting on the power and torque generating period on swash plate
The variation of property.For high revolving speed axial plunger pump, the pulsation torque change frequency that swash plate is subject to is high, causes swash plate worked
High-frequency vibration state is in journey.Therefore, swash plate is as one of axial plunger pump noise exciting source, study swash plate vibration frequency and
Amplitude will be helpful to the vibration characteristics of research high-voltage high-speed axial plunger pump.
Existing method be usually the swashplate angle and vibration characteristics of axial plunger pump are measured indirectly, such as pass through pair
Axial plunger pump swash plate trunnion curved surface is measured indirectly, or passes through swashplate angle tune in the simulation axial plunger pump course of work
Section process reproduction swash plate angle is measured indirectly, but measurement is usually in the presence of very big error indirectly, and structure is complicated cost
Height, measurement process are complicated.
Summary of the invention
The utility model is mainly solving the technical problems that provide a kind of high-voltage high-speed axial plunger pump swashplate angle and vibration
Dynamic characteristic measuring device is able to solve using mode measured directly and is taken indirect survey to swashplate angle and vibration characteristics at present
Amount there are technical problems such as measurement errors, the axial plunger pump swashplate angle and vibration characteristics measuring device have structure simply at
The features such as this is low, oil liquid leakage is few, sensor wiring mounting means is simple and reliable and measurement accuracy is high.
The utility model is achieved through the following technical solutions：A kind of high-voltage high-speed axial plunger pump swashplate angle and
Vibration characteristics measuring device, including：Wobbler shaft, plunger pump case, plunger pump seal cover board, magnetic patch mounting base, contactless angle
Spend sensor, magnetic patch and plunger pump side end cap；
The low-pressure end and high-voltage end of the wobbler shaft of the high-voltage high-speed axial plunger pump are interference fitted with bearing inner race respectively,
Wobbler shaft can be around the rotation of the axis of low-pressure end and high-voltage end；The low-pressure end end face of wobbler shaft is machined with cylindrical hole, low-pressure end
Periphery is machined with the first through hole orthogonal with cylindrical hole；
The magnetic patch mounting base is step cylindrical structure, including big cylinder boss and small column boss two parts, great circle
The end face center of column boss is machined with hollow rectangular parallelepiped structure, and the periphery of small column boss is machined with can be with wobbler shaft low pressure
Second through-hole of the first through hole connection at end；What the small column boss of the magnetic patch mounting base and wobbler shaft low-pressure end end face processed
Cylindrical hole clearance fit；Wobbler shaft low-pressure end and magnetic patch mounting base small column boss are by passing through first through hole and the second through-hole
Pairs of holding screw installs top；
The magnetic patch is rectangular parallelepiped structure, magnetic patch and the hollow rectangular parallelepiped structure gap of the big cylinder raised head face of magnetic patch mounting base
Cooperation；
The plunger pump seal cover board inner cylinder face and bearing outer ring are interference fitted, plunger pump seal cover board external cylindrical surface with
Plunger pump case inner cylinder face, plunger pump side end cap inner convex platform end face interference fit, the end face of plunger pump seal cover board is mounted on
On plunger pump case；Non-contact angle sensor is mounted on plunger pump seal cover board.
Further, plunger is installed between the plunger pump case inner cylinder face and plunger pump seal cover board external cylindrical surface
Pump case sealing ring.
Further, plunger is installed between the plunger pump case external cylindrical surface and plunger pump side end cap Out-raised head face
Pump side end cap seal circle.
Further, the non-contact angle sensor shell is made of high-grade high-temperature resistance plastice, and signal output is logical
It crosses the shielded cable for being sealed in sensor internal or tinned wire is realized, non-contact angle sensor passes through its arc fixing groove
It is mounted on plunger pump seal cover board, arc fixing groove is convenient for in-site installation and machinery adjustment；Non-contact angle sensor is logical
The variation of perception magnetic direction is crossed, to determine the angle of wobbler shaft rotation, high-voltage high-speed axial plunger pump may further be obtained
Vibration characteristics.
Further, the plunger pump seal cover board material is nonmetal character medium aluminium alloy 2A12, it is ensured that magnetic patch and biography
Material will not impact changes of magnetic field between sensor ontology, guarantee measurement accuracy.
Further, the big cylinder raised head face of the magnetic patch mounting base and plunger pump seal cover board outer end face distance are 4mm,
The big cylinder raised head face of magnetic patch mounting base and plunger pump seal cover board inner face gap are 1mm, it is ensured that contactless angle sensing
Device measures the accuracy of the angle of wobbler shaft rotation.
Further, it is convex by acrylic acid adhesive LOXEAL34-59T to be mounted on the big cylinder of magnetic patch mounting base for the magnetic patch
In the hollow rectangular parallelepiped structure in end face, LOXEAL34-59T is suitable for the materials such as magnet, metal, ceramics bonding, and magnetic patch needs are torn open
Acrylic acid adhesive is removed using organic solvent when unloading, realizes that magnetic patch is separated with the big cylinder boss of magnetic patch mounting base.
Further, it is recessed that at least one arc circumferentially is provided on the big cylinder boss periphery of the magnetic patch mounting base
Slot, as flag bit；When flag bit is directed toward shielded cable, non-contact angle sensor is located at electrical centre position, it is ensured that
Non-contact angle sensor carries out precise measurement to the angle that wobbler shaft rotates.
The utility model has the beneficial effects that：
1, high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device structure are simply at low cost：Swashplate angle
It is small to axial plunger pump structural modification with vibration characteristics measuring device, it is only necessary to axial plunger pump wobbler shaft and seal cover board into
Row processing, difficulty of processing is small, processing cost is low, and non-contact angle sensor is made of magnetic patch and sensor body two parts, most
Big degree facilitates installation and maintenance；
2, high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device oil liquid leakage are few：Using contactless
Angular transducer, magnetic patch are fully sealed, and magnetic patch and sensor body are kept apart by plunger pump seal cover board, reduce oil liquid
The generation of source of leaks, especially suitable for adverse circumstances such as dust, dirt or humidities.
3, high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device sensor wiring mounting means are simple
Reliably：Sensor body is mounted on seal cover board outer surface, without arranging lead, mounting means letter in axial plunger pump case
Single, measurement result is reliable；
4, high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device accuracy are high：Swashplate angle and vibration
Dynamic characteristic measuring device uses non-contact angle sensor, by perceiving the variation of magnetic direction, to measure axial plunger pump
The angle and vibration characteristics of swash plate, no mechanical wear, measurement accuracy can reach 0.1 °.
Detailed description of the invention
Fig. 1 is high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device schematic perspective view；
Fig. 2 is the overhead sectional view of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device；
Fig. 3 is the front section view of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device；
Fig. 4 is the left view of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device；
In figure：1- wobbler shaft, 2- plunger pump case, 3- deep groove ball bearing, 4- plunger pump case sealing ring, 5- plunger pump are close
It is contactless to cover plate, 6- plunger pump seal cover board screw, 7- non-contact angle sensor screw, 8- magnetic patch mounting base, 9-
Angular transducer, 10- magnetic patch, the first holding screw of 11-, the second holding screw of 12-, 13- plunger pump side end cap sealing ring, 14-
Plunger pump side end cap.
Specific embodiment
The preferred embodiment of the utility model is described in detail in 1-4 with reference to the accompanying drawing, so that the utility model
Advantages and features can be easier to be readily appreciated by one skilled in the art, to make to the protection scope of the utility model apparent
Explicitly define.
As shown in Figs 1-4, a kind of high-voltage high-speed axial plunger pump swashplate angle provided in this embodiment and vibration characteristics are surveyed
Device is measured, including：Wobbler shaft 1, plunger pump case 2, deep groove ball bearing 3, plunger pump case sealing ring 4, plunger pump seal cover board
5, plunger pump seal cover board screw 6, non-contact angle sensor screw 7, magnetic patch mounting base 8, non-contact angle sensor
9, magnetic patch 10, the first holding screw 11, the second holding screw 12, plunger pump side end cap sealing ring 13, plunger pump side end cap 14.
The low-pressure end and high-voltage end of the wobbler shaft 1 of the high-voltage high-speed axial plunger pump respectively with 3 inner ring of deep groove ball bearing
Interference fit, wobbler shaft 1 can be around the rotations of the axis of low-pressure end and high-voltage end；The low-pressure end end face of wobbler shaft 1 is machined with circle
Post holes, low-pressure end periphery are machined with the first through hole orthogonal with cylindrical hole.
The magnetic patch mounting base 8 is step cylindrical structure, including big cylinder boss and small column boss two parts,
In, the end face center of big cylinder boss is machined with hollow rectangular parallelepiped structure, the periphery of small column boss be machined with can with it is oblique
Second through-hole of the first through hole connection of 1 low-pressure end of dish axle；The small column boss and 1 low pressure of wobbler shaft of the magnetic patch mounting base 8
Hold the cylindrical hole clearance fit of end face processing；1 low-pressure end of wobbler shaft and 8 small column boss of magnetic patch mounting base pass through pairs of clamp screw
Nail installs top, facilitates processing and installation.
The magnetic patch 10 is rectangular parallelepiped structure, magnetic patch 10 and the 8 hollow cuboid knot of big cylinder raised head face of magnetic patch mounting base
Structure clearance fit.
5 inner cylinder face of plunger pump seal cover board and 3 outer ring of deep groove ball bearing are interference fitted, plunger pump seal cover board 5
External cylindrical surface and 2 inner cylinder face of plunger pump case, 14 inner convex platform end face of plunger pump side end cap are interference fitted, plunger pump seal cover board
5 end face is mounted on plunger pump case 2 by four plunger pump seal cover board screws 6.
9 shell of non-contact angle sensor is made of high-grade high-temperature resistance plastice, and signal output is by being sealed in
The shielded cable or tinned wire of sensor internal realize that two non-contact angle sensor screws 7 pass through contactless angle
The arc fixing groove of degree sensor 9 is mounted on plunger pump seal cover board 5, and arc fixing groove is convenient for in-site installation and mechanical tune
It is whole.
Preferably, it is equipped with outside plunger pump between 5 external cylindrical surface of 2 inner cylinder face of plunger pump case and plunger pump seal cover board
Shell sealing ring 4 is equipped with plunger pump side end cap between 14 Out-raised head face of 2 external cylindrical surface of plunger pump case and plunger pump side end cap
Sealing ring 13.
Preferably, the first holding screw 11 and the second holding screw 12 sequentially pass through 1 low-pressure end of wobbler shaft from two sides respectively
Second through-hole of the small column boss periphery processing of the first through hole and magnetic patch mounting base 8 of periphery processing, realizes magnetic patch peace
Fill the connection of seat 8 and 1 low-pressure end of wobbler shaft.
Preferably, non-contact angle sensor 9 passes through the variation of perception magnetic direction, to determine what wobbler shaft 1 rotated
Angle and vibration characteristics, 5 material of plunger pump seal cover board are nonmetal character medium aluminium alloy 2A12, it is ensured that magnetic patch and sensor sheet
Material will not impact changes of magnetic field between body, guarantee measurement accuracy.
Preferably, the big cylinder raised head face of magnetic patch mounting base 8 and 5 outer end face of plunger pump seal cover board distance are 4mm, magnetic patch
The big cylinder raised head face of mounting base 8 and 5 inner face gap of plunger pump seal cover board are 1mm, it is ensured that non-contact angle sensor 9
Measure the accuracy of angle and vibration characteristics that wobbler shaft 1 rotates.
Preferably, magnetic patch 10 is mounted on the big cylinder boss of magnetic patch mounting base 8 by acrylic acid adhesive LOXEAL34-59T
In the hollow rectangular parallelepiped structure in end face, LOXEAL34-59T is suitable for the bonding such as magnet, metal, ceramics, when magnetic patch 10 needs to dismantle
Acrylic acid adhesive is removed using organic solvent, realizes that magnetic patch 10 is separated with the big cylinder boss of magnetic patch mounting base 8.
Preferably, it is provided at least one arc groove circumferentially on the big cylinder boss periphery of magnetic patch mounting base 8, as
Flag bit；When flag bit is directed toward shielded cable, non-contact angle sensor 9 is located at electrical centre position, it is ensured that non-contact
The angle and vibration characteristics progress precise measurement that formula angular transducer 9 rotates wobbler shaft 1.
The installation and the course of work of the present embodiment high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device
It is as follows：
(1) magnetic patch 10 is mounted on the big cylinder boss of magnetic patch mounting base 8 with acrylic acid adhesive；
(2) holding screw is mounted on the first through hole and magnetic patch peace that periphery is processed at 1 low-pressure end of wobbler shaft to top in pairs
It fills in the second through-hole of small column boss periphery processing of seat 8；
(3) it installs on deep groove ball bearing 3 to wobbler shaft 1；
(4) installation plunger pump seal cover board 5 is between 3 outer ring of plunger pump case 2 and deep groove ball bearing, and with four plungers
Plunger pump seal cover board 5 is fixed on plunger pump case 2 by pump seal cover screw 6；
(5) by non-contact angle sensor 9, by two non-contact angle sensor screws 7, to be mounted on plunger pump close
It covers on 5 end face of plate；
(6) when high-voltage high-speed axial plunger pump is started to work, wobbler shaft 1 can be rotated with it, and be equipped on wobbler shaft 1
Magnetic patch 10, the rotation of wobbler shaft 1 cause magnetic direction to change, which is reflected by non-contact angle sensor 9, by meter
Calculation obtains 1 angle signal of wobbler shaft.
(7) it analyzes and can simulate by the angle displacement measurement value to different time points high-voltage high-speed axial plunger pump
Oscillating curve out, so as to obtain the vibration characteristics of high-voltage high-speed axial plunger pump.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (8)
1. a kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device, which is characterized in that including：Wobbler shaft
(1), plunger pump case (2), plunger pump seal cover board (5), magnetic patch mounting base (8), non-contact angle sensor (9), magnetic patch
(10) and plunger pump side end cap (14)；
The low-pressure end and high-voltage end of the wobbler shaft (1) of the high-voltage high-speed axial plunger pump are interference fitted with bearing inner race respectively,
Wobbler shaft (1) can be around the rotation of the axis of low-pressure end and high-voltage end；The low-pressure end end face of wobbler shaft (1) is machined with cylindrical hole,
Low-pressure end periphery is machined with the first through hole orthogonal with cylindrical hole；
The magnetic patch mounting base (8) is step cylindrical structure, including big cylinder boss and small column boss two parts, big cylinder
The end face center of boss is machined with hollow rectangular parallelepiped structure, and the periphery of small column boss is machined with can be low with wobbler shaft (1)
Second through-hole of the first through hole connection of pressure side；The small column boss of the magnetic patch mounting base (8) and wobbler shaft (1) low-pressure end end
The cylindrical hole clearance fit of face processing；Wobbler shaft (1) low-pressure end and magnetic patch mounting base (8) small column boss are logical by passing through first
The pairs of holding screw of hole and the second through-hole installs top；
The magnetic patch (10) is rectangular parallelepiped structure, magnetic patch (10) and the hollow cuboid of magnetic patch mounting base (8) big cylinder raised head face
Structure interval cooperation；
Plunger pump seal cover board (5) inner cylinder face and bearing outer ring are interference fitted, plunger pump seal cover board (5) external cylindrical surface
It is interference fitted with plunger pump case (2) inner cylinder face, plunger pump side end cap (14) inner convex platform end face, plunger pump seal cover board (5)
End face be mounted on plunger pump case (2)；Non-contact angle sensor (9) is mounted on plunger pump seal cover board (5).
2. a kind of high-voltage high-speed axial plunger pump swashplate angle according to claim 1 and vibration characteristics measuring device,
It is characterized in that, plunger pump is installed between plunger pump case (2) inner cylinder face and plunger pump seal cover board (5) external cylindrical surface
Shell sealing ring (4).
3. a kind of high-voltage high-speed axial plunger pump swashplate angle according to claim 1 and vibration characteristics measuring device,
It is characterized in that, plunger is installed between plunger pump case (2) external cylindrical surface and plunger pump side end cap (14) Out-raised head face
Pump side end cap seal circle (13).
4. a kind of high-voltage high-speed axial plunger pump swashplate angle according to claim 1 and vibration characteristics measuring device,
It is characterized in that, non-contact angle sensor (9) shell is made of high-temperature resistance plastice, and signal output is by being sealed in sensing
Shielded cable or tinned wire inside device realize that non-contact angle sensor (9) is mounted on column by its arc fixing groove
It fills on pump seal cover board (5).
5. a kind of high-voltage high-speed axial plunger pump swashplate angle according to claim 1 and vibration characteristics measuring device,
It is characterized in that, plunger pump seal cover board (5) material is nonmetal character medium aluminium alloy 2A12.
6. a kind of high-voltage high-speed axial plunger pump swashplate angle according to claim 1 and vibration characteristics measuring device,
It is characterized in that, the big cylinder raised head face of the magnetic patch mounting base (8) and plunger pump seal cover board (5) outer end face distance are 4mm, magnetic
The big cylinder raised head face of block mounting base (8) and plunger pump seal cover board (5) inner face gap are 1mm.
7. a kind of high-voltage high-speed axial plunger pump swashplate angle according to claim 1 and vibration characteristics measuring device,
It is characterized in that, it is convex that the magnetic patch (10) by acrylic acid adhesive LOXEAL34-59T is mounted on the big cylinder of magnetic patch mounting base (8)
In the hollow rectangular parallelepiped structure in end face.
8. a kind of high-voltage high-speed axial plunger pump swashplate angle according to claim 1 and vibration characteristics measuring device,
It is characterized in that, is provided at least one arc groove circumferentially on the big cylinder boss periphery of the magnetic patch mounting base (8), as
Flag bit；When flag bit is directed toward shielded cable, non-contact angle sensor (9) is located at electrical centre position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820460324.7U CN208125129U (en) | 2018-04-03 | 2018-04-03 | A kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820460324.7U CN208125129U (en) | 2018-04-03 | 2018-04-03 | A kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device |
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| CN208125129U true CN208125129U (en) | 2018-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663020A (en) * | 2018-04-03 | 2018-10-16 | 浙江大学 | A kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device |
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2018
- 2018-04-03 CN CN201820460324.7U patent/CN208125129U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663020A (en) * | 2018-04-03 | 2018-10-16 | 浙江大学 | A kind of high-voltage high-speed axial plunger pump swashplate angle and vibration characteristics measuring device |
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